Major League Baseball is making metal detectors mandatory at all the ball parks across the country next season, but the Brewers are using them periodically this season so they and the fans can get used to them.

"We're picking random gates, and random games between now and the end of the year with the hopes of having the most efficient way to get people in starting on opening day 2015," said Jason Hartlund, vice president of Brewer Enterprises.

Fans WISN 12 News spoke with said they would welcome metal detectors, citing experiences with them elsewhere.

"I think it's a great idea. I don't want to get shot while I'm watching a ball game, so yeah I appreciate them doing that," fan John Marz said.

Marz also said he wants his grand kids to feel safe.

Gary Filbert said he and his family expected it to come to this.

"I mean, you look at the airports and stuff like that, yes, eventually I thought it would," Filbert said.

"And you know what our hope is that most people take that approach. It is kind of a new normal. We have a very safe environment, but this will just be an extra layer to add safety to the fan experience at Miller Park," Hartlund said.

The Brewers will not announce in advance when they will have the metal detectors out or at which gate.

They used them Wednesday night but not Thursday. Next year, fans can expect to see them at every game.

EMERGENCY LANDINGS IN 2013. NEW AT 6:00, SOME SECURITY CHANGES COMING TO MILLER PARK. METAL DETECTORS ARE ABOUT TO BE INSTALLED. WISN 12 NEWS' MIKE ANDERSON IS LIVE THERE TONIGHT. MIKE, SOME PEOPLE HAVE ALREADY BEEN SCREENED BY THEM. YES, THEY HAVE. MAJOR LEAGUE BASEBALL IS MAKING DETECTORS MANDATORY AT ALL STADIUMS. THE BREWERS ARE BRINGING THE MAP -- THEM OUT PERIODICALLY SO THAT FANS CAN GET USED TO THEM. THE LINES WERE LONG AT THE GATES ON THURSDAY. BAGS WERE SEARCHED, BUT NO METAL DETECTORS. THAT IS ABOUT TO CHANGE NEXT SEASON AS MAJOR LEAGUE BASEBALL IS REQUIRING ALL STADIUMS TO INSTALL THEM. THE BREWERS STARTED DRY RUNS. SOME FANS AT LAST NIGHT'S GAME GOT A FIRSTHAND EXPERIENCE. RANDOM GATE AND RANDOM GAMES -- GATES BETWEEN NOW AND THE END OF THE YEAR. FANS WE SPOKE WITH SAID THEY WOULD HELP -- WELCOME METAL DETECTORS. I THINK IT IS A GREAT IDEA. I DON'T WANT TO GET SHOT WHY I AM WATCHING A BALLGAME. I APPRECIATE THEM DOING THAT. HE ALSO ONCE HIS GRANDKIDS TO FEEL SAFE. THIS MAN SAYS HE EXPECTED THIS. IF YOU LOOK AT THE AIRPORTS , YES, I THOUGHT IT WOULD. IT IS KIND OF A NEW NORMAL. THIS WILL BE AN EXTRA LAYER. THE BREWERS WILL ANNOUNCE -- NOT ANNOUNCED IN ADVANCE WHEN THEY HAVE THE METAL DETECTORS OUT. THEY USE THEM LAST NIGHT. NOT TODAY.

The Obama administration will unveil a major climate change plan Monday aimed at a large reduction in greenhouse gas emissions from the nation's coal-burning power plants, a senior administration official told CNN.